Water cooling apparatus for drawing blocks



Jan. 16, 1962 c. o. BRUESTLE 3,

WATER COOLING APPARATUS FOR DRAWING BLOCKS Filed June 50, 1960 3Sheets-Sheet 1 Ill! INVENTOR. 6 ,424 0. fieuamf Jan. 16, 1962 c. o.BRUESTLE 3,917,917

WATER coouuc APPARATUS FOR DRAWING BLOCKS Filed June 30, 1960 3Sheets-Sheet 2 INVENT 'OR. 65m 0' fileuamf i? &

Jan. 16, 1962 c. o. BRUESTLE 3,

WATER COOLING APPARATUS FOR DRAWING BLOCKS Filed June 30, 1960 3Sheets-Sheet 3 INVENTOR. 6 ,454 0. 5053745 United States Patent3,017,017 WATER COOLING APPARATUS FOR DRAWING BLOCKS Carl 0. Bruestle,Metuchen, N.J., assignor to Syncro Ma= chine Company, Perth Amboy, N.J.,a corporation of New Jersey Filed June 30, 1960, Ser. No. 39,980 7Claims. (Cl. 20520) The present invention relates to means for coolingdrawing blocks of wire drawing machines and particularly to means forcooling finishing blocks by means of cooling water supplied within theblock during its rotation.

More particularly still the invention relates to the cooling offinishing or coiling blocks of the type in which the block is dividedinto sectors in order that a tool for removing the finished coil may beinserted, which renders it impossible to utilize the usual water coolingarrangements.

The cooling arrangements of the present invention are such that it ispossible to utilize coiling blocks of different dimensions therewith,the cooling apparatus being so arranged that differently dimensionedblocks may be mounted upon a drive shaft and readily, by the act ofmounting, connected so that cooling water is supplied thereto andexhausted therefrom.

Other objects and features of the invention will be apparent when thefollowing description is considered in connection with the annexeddrawings, in which,

FIGURE 1 is a top plan view of a sectored or slotted finishing blockillustrating particularly the type of block to which the presentinvention is applied;

FIGURE 2 is a vertical cross-sectional view taken on the planes of theline 2-2 of FIGURE 1 showing the construction of the cooling apparatusof the instant invention;

FIGURE 3 is a horizontal cross-sectional view taken on the plane of theline -33 of FIGURE 2 and showing partioularly the arrangement of waterinlet and outlet ports;

FIGURE 4 is a horizontal cross-sectional view taken on the plane of theline 44 of FIGURE 2 and showing additional details of the water inletsystem;

FIGURE 5 is a top plan view of a tool which fits into the slots of thefinishing block and underlies the wire coiled upon that block so that atperiodic intervals the coiled wire may be stripped or removed from thefinishing machine block; and

FIGURE 6 is a side elevation of the tool of FIGURE 5.

Referring now to the drawings and particularly to FIG- URE 2, there isshown therein the usual shaft 10 on which the sectored drawing block,generally designated 11, is mounted. Shaft 10 is provided with the usualbearings 12 and is driven in any suitable manner.

As indicated above, the drawing or finishing block is formed of foursectors 10a, between which are the slots 19. This arrangement providesfor use of a wire coil removing tool as hereinafter described.

The drawing block 11 is mounted on the shaft 10 by virtue of a taperedportion 13 of the hub of the drawing blocks which mates with a similarlytapered portion of shaft 10, the block being securely fixed on thetapered shaft by means of a suitable fastening such as the screw 14.

Fixed to base 15 and concentric with the shaft 10, is a cup-shapedmember 16 having an aperture 17 through which shaft 10 and a sleeve 18thereon passes. Surrounding the aperture 17 is a water sealing ring 20.Integral with member 16 and extending upwardly is a circular flange 21which carries the sealing ring 22 and the split retaining ring 23.

Mounted for rotation with shaft 10 is the sleeve 18 having fourlongitudinal holes 25 therein. Sleeve 18 is formed with grooves 26 and27 in its outer surface, these grooves mating With the rings 23 and 22respectively. Ring 23 is, as explained above, a split retaining andlocation ring while ring 22 is a sealing ring. Adjacent the top thereofeach hole 25 is formed with a groove in its wall and an O-ring 28 isplaced in each of these grooves. In a similar manner the inner surfaceof sleeve 18 is formed with a groove near its upper end and an O-ring 30is placed in this groove and prevents water from creeping along theshaft 10.

As has been indicated heretofore, water is supplied through a pipe 31 tocasing portion 29 formed on member 16 and to the chamber 32 formed bythe member 16, flange 21 and sleeve 13. As will readily be seen, sincethis chamber is supplied with water under pressure there is a flow ofwater into the holes 25.

The hub portion 24 of drawing block 11 is provided with four passagewaystherein, these passageways having vertical portions designated 33, eachjoining a substantially horizontal portion 34 which enters: the blockabove the integral sector members or plates 35. At the lower end eachpassageway 33 is enlarged and a tube 36 is fastened therein, the tubeprotruding from the lower face of the hub portion of block 11.

It will be seen that by means of this arrangement the drawing block maybe removed by simply loosening the nut 14 and removing the tapered hubfrom the tapered portion of shaft 10. The tubes 36 will thus bewithdrawn from the holes 25 and a diiferent drawing block, suppliedhowever, with like tubes 36, may be inserted, the water seal beingcompleted by this insertion due to the use of the O-rings 28. Thesectors are closed by means of plates 37 fixed by suitable means, suchas screws 38, to the hub and rim of block 11.

As indicated hereinabove, water flows into the chamber of member 26 andthence through tubes 36 and passageways 33 and 34 onto the upper surfaceof the sector members 35. A series of holes 40 is provided around theperiphery of each sector member 35 adjacent the inner surface of thevertical portion of drawing block 11. Thus water is discharged from thesector plates and runs downwardly over the inner surface of the drawingblock cooling that block and providing for heat transfer from the drawnWire which is, as is well known, at a relatively high temperature.

Water is discharged through one or more ports indicated at 41, FIGURE 4,and may be sent to waste or cooled and recirculated.

The construction of block 11 is such that a water seal is provided toprevent water escaping from the discharge chamber indicated at 42.Although this water sealing means forms no part of my invention itcomprises the disk 43 fixed to the base 15 by means of the bent offflange 44, and having the upwardly extending cylindrical portions 45 and46 adjacent the lower end of the drawing block. The block is providedwith the usual flange 47 and with the downwardly extending annular ribs48 and 50. As will be obvious, any water flowing down the inner surfaceof the block 11 is carried by the annular rib 50 below the upper edge ofrim or flange 46 and cannot, therefore, be centrifugally thrownoutwardly. Should the level of water in the chamber 42 at any timeexceed the height defined by the upper edge of annular flange 46, itstill could not flow outwardly due to the fact that flange 48 extendsupwardly to a much greater extent.

It will be seen from the foregoing description that cooling water iscaused to flow in a relatively thin layer over the inner surface ofblock 11 to thereby cool the wire thereon and that this is possible eventhough the drawing block is provided with the slots between sectors.

Before starting the machine the coil removing device shown in FIGURES 5and 6 and comprising the central shaft 51 having four collapsible angledarms 52 radiating therefrom at the 90 points of a circle is positionedwith the arms 52 extending into the slots and with the ends 59underlying the lowermost coil of wire, as shown in dashed lines inFIGURE 2. The removing device 51 is provided at its top with anintegrally formed ring 53 adapted to be engaged by the hook of a crane.Thus when wire has been drawn to an extent that the finishing block hasa desired amount coiled thereon, the machine is stopped, the wire cut,and a crane then engages the eye 53 and lifts the device 51. Since thearms lie beneath the entire wire coil then on the finishing block, thiscoil is lifted off by the member 51. It is to be noted that the arms 52lie below the level at which flange 47 meets block 11 and consequentlyare below the first turn of wire on the finishing block.

While I have described a preferred embodiment of my invention, it willbe understood that I wish to be limited not by the foregoingdescription, but solely by the claims granted to me.

What is claimed is:

1. Means for cooling a sectored finishing block of the type havingvertical slots extending inwardly of the block surface to receiveelements of a coil removal device, said means comprising, incombination, a circular chamber formed about the block shaft and withinthe block, said chamber being closed on one side by a closure memberrotatable with the finishing block, a plurality of passages equal to thenumber of sectors of the block, said passages extending longitudinallythrough said chamber closure member, a corresponding plurality ofpassage- Ways in the hub of the block, each said passageway terminatingin a tubular extension, said tubular extensions mating with thepassageways in said chamber closure member, radially extending sectorplates adjacent the upper edge of the drawing block, substantiallyradially extending passageways in the block hub communicating with thefirst mentioned passageways therein and with the space above said sectorplates, and a plurality of apertures formed in each sector member at itsouter edge adjacent the inner surface of the block, whereby coolingfluid supplied to said chamber under pressure flows through saidchamber, said passageways in said chamber closure member, saidlongitudinal and radial passageways in the block hub and over saidsector plates through said apertures and downwardly along the innerwalls of the block.

2. A device in accordance with claim 1 wherein said closure member forsaid chamber comprises a grooved sleeve, said chamber wall adjacent saidclosure member being provided with at least one annular sealing ringentering a corresponding groove in said closure ring.

3. A device in accordance with claim 1 wherein said longitudinalpassages in said closure members have 0- ring seals placed in grooves inthe walls thereof, said seals engaging said tubular extensions.

4. A device as claimed in claim 1 wherein said annular closure memberfor said chamber has an O-ring seal in the inner wall thereofsurrounding the block shaft, said seal preventing water from leakingfrom said chamber along said shaft.

5. A device in accordance with claim 1 wherein said chamber is providedwith an annular seal surrounding the block shaft in the wall remote fromsaid closure member, and said closure member is a sleeve extendingbetween said shaft and said seal, said seal preventing escape of waterfrom said chamber.

6. A device in accordance with claim 1 wherein said tubular extensionscoact with said passageways in said chamber closure member to rotatesaid closure member.

7. A device in accordance with claim 1 wherein means are provided forclosing the upper end of the drawing block above said sector plates tothereby form closed areas through which water passes from said radialpassageways in said hub to said peripheral apertures in said sectorplates.

References Cited in the file of this patent UNITED STATES PATENTS824,655 Horton June 26, 1906 2,167,397 Tideman July 25, 1939 2,219,094Morgan et al. Oct. 22, 1940

